Search for neutral Higgs bosons decaying into four taus at LEP2

Details Search for neutral Higgs bosons decaying into four taus at LEP2 Search for neutral Higgs bosons decaying into four taus at LEP2

2010-03-03

arxiv.org/abs/1003.0705v2

JHEP 1005:049,2010

Physics

High Energy Physics

High Energy Physics - Experiment

18 pages, 16 figures

Scientific paper

10.1007/JHEP05(2010)049

A search for the production and non-standard decay of a Higgs boson, h, into four taus through intermediate pseudoscalars, a, is conducted on 683 pb-1 of data collected by the ALEPH experiment at centre-of-mass energies from 183 to 209 GeV. No excess of events above background is observed, and exclusion limits are placed on the combined production cross section times branching ratio, \xi^2 = \sigma(e+e- --> Zh)/\sigma_{SM}(e+e- --> Zh) x B(h --> aa)x B(a --> \tau^+\tau^-)^2. For mh < 107 GeV/c2 and 4 < ma < 10 GeV/c2, \xi^2 > 1 is excluded at the 95% confidence level.

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